Dieter-friendly refers to food and drinks that are low in fat, calories, and sugar. The two crossword solutions for this term are NONFAT (6 letters) and NOCAL (5 letters). NONFAT indicates that the food or drink has no fat content, while NOCAL means that it has no added sugar or calories. Dieter-friendly foods and drinks are often recommended for those who are trying to lose weight or maintain a healthy lifestyle.